C31232233133313221211113313331333133313311211111323223313331312231   >>    C3123223313331322121111331333133313331331121111132322331333131223   <<    C31232233133313221211113313331333133313311211111323223313331312233   >>      C31232233133313221211113313331333133313311211111323223313331312232   >>